/**
 *  Copyright (c) 2011 Mia-Software.
 *  
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *  
 *  Contributors:
 * 	Gregoire Dupe (Mia-Software) - Design
 * 	Nicolas Guyomar (Mia-Software) - Implementation
 * 	Emmanuelle RouillÃ© (Mia-Software) - Bug 352618 - To be able to use non derived facet structural features and save them values. 
 * 	Nicolas Bros (Mia-Software) - Bug 361823 - [Restructuring] eFacet2 meta-model
 */
package org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.serialization.impl;

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.impl.ENotificationImpl;
import org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.serialization.SerializationPackage;
import org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.serialization.SingleValuedReferenceInstance;

/**
 * <!-- begin-user-doc -->
 * An implementation of the model object '<em><b>Single Valued Reference Instance</b></em>'.
 * <!-- end-user-doc -->
 * <p>
 * The following features are implemented:
 * <ul>
 *   <li>{@link org.eclipse.emf.facet.efacet.metamodel.v0_2_0.efacet.serialization.impl.SingleValuedReferenceInstanceImpl#getReferencedElement <em>Referenced Element</em>}</li>
 * </ul>
 * </p>
 *
 * @generated
 */
public class SingleValuedReferenceInstanceImpl extends AbstractReferenceInstanceImpl implements SingleValuedReferenceInstance {
	/**
	 * The cached value of the '{@link #getReferencedElement() <em>Referenced Element</em>}' reference.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @see #getReferencedElement()
	 * @generated
	 * @ordered
	 */
	protected EObject referencedElement;

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	protected SingleValuedReferenceInstanceImpl() {
		super();
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EClass eStaticClass() {
		return SerializationPackage.Literals.SINGLE_VALUED_REFERENCE_INSTANCE;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EObject getReferencedElement() {
		if (referencedElement != null && referencedElement.eIsProxy()) {
			InternalEObject oldReferencedElement = (InternalEObject)referencedElement;
			referencedElement = eResolveProxy(oldReferencedElement);
			if (referencedElement != oldReferencedElement) {
				if (eNotificationRequired())
					eNotify(new ENotificationImpl(this, Notification.RESOLVE, SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT, oldReferencedElement, referencedElement));
			}
		}
		return referencedElement;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public EObject basicGetReferencedElement() {
		return referencedElement;
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	public void setReferencedElement(EObject newReferencedElement) {
		EObject oldReferencedElement = referencedElement;
		referencedElement = newReferencedElement;
		if (eNotificationRequired())
			eNotify(new ENotificationImpl(this, Notification.SET, SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT, oldReferencedElement, referencedElement));
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object eGet(int featureID, boolean resolve, boolean coreType) {
		switch (featureID) {
			case SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT:
				if (resolve) return getReferencedElement();
				return basicGetReferencedElement();
		}
		return super.eGet(featureID, resolve, coreType);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eSet(int featureID, Object newValue) {
		switch (featureID) {
			case SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT:
				setReferencedElement((EObject)newValue);
				return;
		}
		super.eSet(featureID, newValue);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public void eUnset(int featureID) {
		switch (featureID) {
			case SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT:
				setReferencedElement((EObject)null);
				return;
		}
		super.eUnset(featureID);
	}

	/**
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public boolean eIsSet(int featureID) {
		switch (featureID) {
			case SerializationPackage.SINGLE_VALUED_REFERENCE_INSTANCE__REFERENCED_ELEMENT:
				return referencedElement != null;
		}
		return super.eIsSet(featureID);
	}

} //SingleValuedReferenceInstanceImpl